Scilab Function
Last update : 13/4/2004

rgb2name - returns the name of a color

### Calling Sequence

  `names=rgb2name(r,g,b)`
  `names=rgb2name(rgb)`

### Parameters

- `r,g,b`: RGB integer values of a color.
- `rgb`: vector of RGB integer values of a color.
- `names`: names of the color.

### Description

`rgb2name` returns the color name corresponding to the RGB values given by its argument. A vector of color names can also be returned if the color has more than 1 name. `r`, `g` and `b` must be integers between 0 and 255 corresponding to colors components red, green and blue. As usual 0 means no intensity and 255 means all the intensity of the color. RGB values can also be given by a vector `[r,g,b]`.

If no color is found `[]` is returned.

The list of all known colors is given by `color_list`.

### Examples

    rgb2name(255,128,128)
    rgb2name([255 215 0])
    // get color #10 of the current colormap and find its name
    cmap=get(gcf(),"color_map");
    rgb2name(cmap(10,:)*255)

### See Also

`color`, `color_list`, `name2rgb`,